Portion of a shoe upper



FIG. 1 is a perspective view of a portion of a shoe upper showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a front view thereof; and,

FIG. 4 is a top view thereof.

The even broken lines within the shaded region represent stitching. The uneven broken line immediately adjacent to the shaded region represents an unclaimed boundary of the design and the uneven broken lines showing the remainder of the shoe are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 